Download Circuits 1. grade only

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Circuits
1. Investigate and compare series and parallel circuits 10th grade only
1. In the circuit below, 3 amperes of current passes through the light bulb. The resistance of
the light bulb is 1.5 ohms. What is the voltage of the battery?
a.
b.
c.
d.
1.5 volts
3 volts
4.5 volts
6 volts
Figure 3-1A
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2. Which of the circuit diagrams shown in Figure 3-1A is a parallel circuit?
a. I only
b. II only
c. III only
d. I and II only
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3. Which of the circuit diagrams shown in Figure 3-1A is a series circuit?
a. I only
b. II only
c. III only
d. I and II only
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4. Calculate the total resistance in the circuit below.
a. 1/3 ohm
b. 3 ohms
c. 9 ohms
d. 27 ohms
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5. What is the voltage drop across each resistor in the circuit below?
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2 volts
4 volts
6 volts
12 volts
6. What is the voltage drop across each resistor in the circuit below?
a.
b.
c.
d.
1 volt
3 volts
4.5 volts
9 volts
____ 23. What is the current in each resistor in the circuit below?
a.
b.
c.
d.
a. 1/3 ampere
b. 1 ampere
c. 3 amperes
d. 9 amperes
____ 24. What is the current in each resistor in the circuit?
a. 1/3 ampere
b. 1 ampere
c. 3 amperes
d. 9 amperes
Answers circuits
1.
2.
3.
4.
5.
6.
C
C
C
B
C
C